Silicon doped with gallium forms

Which of the following dopant is used in silicon to produce $p$-type semiconductor?

Given below are two statements.
Statement $I$ : $O_2, Cu^{2+}$ and $Fe^{3+}$ are weakly attracted by magnetic field and are magnetized in the same direction as magnetic field.
Statement $II$ : $NaCl$ and $H_2O$ are weakly magnetized in opposite direction to magnetic field.
In the light of the above statements,choose the most appropriate answer from the options given below:

$A$ solid is hard and brittle. It is an insulator in solid state,but conducts electricity in molten state. The solid is a

Which of the following is an amorphous solid?

What type of solids are electrical conductors,malleable and ductile?